What are the characteristics of melt metering pumps in plastic extrusion processing?

Here are the prominent characteristics of melt metering pumps in plastic extrusion processing:

Enhanced Output Stability

Precise Flow and Pressure Control: Melt metering pumps, through precise control of flow and pressure, can significantly reduce pressure fluctuations caused by factors such as uneven material feeding, temperature fluctuations in the barrel and die head, and screw speed pulsations. This ensures that the melt enters subsequent processes in a stable state.

Stable Product Quality: Stable melt output contributes to improved dimensional accuracy of extruded products, reducing waste rates and thereby enhancing product quality.

Energy Efficiency and Savings

Optimized Energy Consumption: An appropriate control system can achieve higher temperature control performance and better drive power matching, effectively reducing energy consumption and production costs.

Increased Production Efficiency: Melt metering pumps can be adjusted to optimal operating points based on the characteristics of the conveyed medium (such as viscosity and temperature) to achieve maximum efficiency output. Simultaneously, reducing manual intervention points and frequencies further enhances production efficiency.

Strong Adaptability

Wide Viscosity Range Applicability: Melt metering pumps can be used in a variety of operating conditions from low to extremely high viscosities, meeting the processing needs of different plastic materials.

Multiple Installation Methods: They support horizontal, vertical (upward or downward), and any-direction inlet and outlet installations, adapting to various production environments and equipment layouts.

High Performance and Longevity

High-Temperature and High-Pressure Capability: Melt metering pumps can withstand high-temperature (up to 350°C) and high-pressure (up to 40 MPa) working environments, capable of handling production tasks under extreme conditions.

Precision Structure: Melt metering pumps feature a precise and highly accurate structure, contributing to enhanced operational stability and reliability.

Excellent Heat Treatment and Manufacturing Processes: These ensure a long service life for melt metering pumps.

Precise Control and Homogenization of Melt

Stable Melt Pressure: Melt metering pumps can prevent pressure fluctuations, which is crucial for maintaining the stability of the extrusion process and product quality.

Accurate Flow Control: By adjusting the rotational speed of the melt metering pump, the flow of the melt can be precisely controlled, ensuring consistency during the extrusion process.

Homogenization Effect: During melt conveyance, the melt metering pump achieves shear and mixing of the melt through the rotation of gears or screws, thereby improving the uniformity and stability of the melt.

Other Characteristics

Low Shear Effect: During melt conveyance, melt metering pumps exert relatively low shear forces on the plastic melt, preserving the melt's original properties and molecular structure.

Good Sealing: Various sealing methods are employed to effectively prevent melt leakage, ensuring the safety and stability of production.

In summary, polymer melt metering pumps exhibit multiple advantageous characteristics in plastic extrusion processing, making them play a crucial role in this field.

Email: info@battemachinery.com

WhatsApp: +86 158 38331071

Any questions about our products, please feel free to contact us! We promise you high-end products and first-class service.Look forward to our cooperation!!!